Question

Х= -0,5 , у=1,5 10х -2у = ? 2х+у=?

Answer 1

Ответ:

х=-1/2 у=3/2

10*(-1/2)-2*3/2=-5-3=-8

2*(-1/2)+3/2=-1+3/2=1/2

Answer 2

To find the values of the expressions 10x - 2y and 2x + y, we can substitute the given values of x and y into the expressions.

Given: x = -0.5 y = 1.5

Substituting the values into the first expression: 10x - 2y = 10(-0.5) - 2(1.5) = -5 - 3 = -8

Substituting the values into the second expression: 2x + y = 2(-0.5) + 1.5 = -1 + 1.5 = 0.5

Therefore: 10x - 2y = -8 2x + y = 0.5